Which Turbo Should I Get [merged] What Turbo

[Ludachris]

Which turbo will be sufficient for consistent 11 second times? I've recently decided on a big 16g, but will that be big enough to run 11s with supporting mods and decent tuning? Remember, this is for a budget street car, so any one purchase over $1k is tough. A big 16g will run about $700-900, which is about $300-400 less than the larger alternatives.

Of course, I'll need lots of practice to run these times, but, I just want to make sure that it's possible before the money is spent.

 

[90Awd_eagle]

I'm all for selling them just dont't have enough post on here I really want a good clean setup.

I Really just need to get rid of these I feel like.

 

[dakiller]

Help. I'm an Aussie, and I want a Holset.

I'm building up a motor for my G-VR4 (Eagle Rods, Wiseco 1400HD, Kelford 264, etc.) and I've done my readings on Holsets and mostly have my thoughts on a 6 blade HX35. I want to build a proper twinscroll manifold, my little brother is a stainless welder by trade.

The problem is I'm in Australia, a long way from anywhere.

I've come across this, which I think looks good, but I don't know if it is the real deal or not, but seems a good deal if it is to get one under 500 shipped to me - Holsett HX35W Truck Turbo | eBay

It's a bit smaller than what I was really looking for. Should I concede or hold out and find a 6 blade hx35?

 

[Diamond Star Werks]

I'm all for selling them just dont't have enough post on here I really want a good clean setup.

I Really just need to get rid of these I feel like.

Yep. Sellem.

 

[AndersonsDSM]

pte 6060. close the books and done

 

[We're on Boost]

It's a bit smaller than what I was really looking for. Should I concede or hold out and find a 6 blade hx35?

Jeez it's beautiful!
And I think for a new one it's about half-price. Wonder why. I suppose they are just trying to get rid of it.

The one shown is a 7-blade, which as far as I know is the bigger or biggest flow-wise of the HX-35 family. I didn't even know there was a 6 blade HX-35. There is an 8 blade, but it is smaller flowing than the 7 blade. Have you seen the Holset summarys in here, like this:

http://www.dsmtuners.com/forums/turbo-system-tech/303969-holset-turbos-part-4-a-34.html#post151666560

 

[95DsManiac]

The EVO3 16g will do 42-43 lbs/min maxed out, the unclipped 5H 20g will get cranky around 44 lbs/min, 45 if you push it, and the old school 6H 20g will do ~48 lbs/min maxed out. I've been wondering for a couple years since running an unclipped 5H 20g for the first time on my GF's talon, which is better, the EVO3 16g or the 5H 20g. The EVO3 at 42 lbs is up against the compressor limit and the turbine drive pressure is going vertical. The 5H 20g at 42 lbs should still have good compressor efficiency, but I'm not sure what drive pressure is doing since it's getting near the turbine limit for that combo (an assumption, since the 6H goes higher). I didn't log back pressure on her car unfortunately. The difference is probably miniscule, and the slight spool advantage of the 16g probably makes it the winner.

Nice write I must say. Your always the one to be very in depth and I like reading your posts. Also love you car . But anyhow, when I had my mhi 20g on my gsT ( ran it for a couple months but just traded it for a h1c today) I logged 46.8 lbs/min airflow only at 22psi. Everything was dialed in perfectly. I thought it was wrong so I did more pulls and would still get between 44.xx and 46.xx lbs/min. It was in the down firing housing 2.5". The hot side was a 7cm unported. My mods are up to date in my profile and what I'm getting at here is how do you think I was able to log that much airflow? I see everywhere on the forums where it mentions it is hard to get that much out of a 20g. Oh and this was on pump 91 and meth injection my own blend of 70/30 meth/water. I was running about 18-19 degrees of timing up top. I wanted to go for the record but I thought I blew up my engine (ended up being a headgasket) and I just went all out on my 6 bolt block 2g head build. I'm just curious if those numbers could've been wrong. Hope I'm not blabbering and asking/saying too much.

Anthony B.

 

[dakiller]

Jeez it's beautiful!
And I think for a new one it's about half-price. Wonder why. I suppose they are just trying to get rid of it.

The one shown is a 7-blade, which as far as I know is the bigger or biggest flow-wise of the HX-35 family. I didn't even know there was a 6 blade HX-35. There is an 8 blade, but it is smaller flowing than the 7 blade. Have you seen the Holset summarys in here, like this:

http://www.dsmtuners.com/forums/turbo-system-tech/303969-holset-turbos-part-4-a-34.html#post151666560

Guess I was mixing myself up, I knew there were 2 blade counts and the smaller has the higher flow, some reason I had the numbers 6 and 7 in my head.

So it's a definite buy?

 

[We're on Boost]

Guess I was mixing myself up, I knew there were 2 blade counts and the smaller has the higher flow, some reason I had the numbers 6 and 7 in my head.

So it's a definite buy?

Yeah you might have been thinking about the HX-40, because the 40 can be had with 8, 7, or 6 blades. And like you were thinking the 6 blade and 7 blade hx-40's are higher flowing than the 8 blade.

Anyway I would say the one you found is a definite buy. Price is low, it's new. Most Holsets look like something that was dredged off the bottom of lake Erie when people buy them used. This one's beautiful.

You will probably have to look into buying a different turbine housing for it because I doubt you will be able to use the one that's on it. That one has an internal wastegate and the turbine outlet is quite long. I don't know enough about Holsets to tell you for sure what to get for a turbine housing, but most of the Holset people buy either the .55 a/r bolt-on housing from Bullseye, or Bullseye's .70 a/r housing which I think needs a T3 exhaust manifold, or they get a "12cm" Holset turbine housing without internal wastegate. That last one has a T3 inlet and is divided, but the experts say it works fine when bolted up to a non-divided T3 manifold, fit and performance both good.

I think the only turbine housing that bolts right up to a regular DSM exhaust manifold is the .55 a/r Bullseye housing. I don' know what the wastegate choices are on that one, and I don't know how available they are right now. So I'm saying, as long as you are ok with the turbine housing / wastegate / exhaust manifold / O2 housing repercussions, it looks like a great buy to me.

 

[Archer Fabrications]

You can run the .55 internal or external, off the manifold or o2 housing.

 

[dakiller]

You will probably have to look into buying a different turbine housing for it because I doubt you will be able to use the one that's on it.

I plan on making a custom twinscroll manifold. I got a GVR-4 which is a bit tighter than the regular DSM's in space at the front, I've at least seen it done before though.

 

[We're on Boost]

I plan on making a custom twinscroll manifold. I got a GVR-4 which is a bit tighter than the regular DSM's in space at the front, I've at least seen it done before though.

That sounds like a good plan. I think the Holsett compressor housings are about 8" across on the outside, front to back.

 

[Zufelt]

I can't decide on the turbo I want.. Search.. More searching and then some. I see tons of numbers but most being on race gas.

I currently have
14B
650cc FIC
DSMlink
272 BC cams
2600 ACT
190 Walbro
Greddy 18r FMIC
3" cat back
K&N Intake


I'm trying to reach 325-350 AWHPon 91 Octane.. I figure a 16g was good enough but it seems that those numbers are on a higher octane/race gas.. So, I'm thinking perhaps the greddy 18g can get me there on 91? I can get a good deal on one.. If not then ill have to look into a 20g. I was a little disappointed by the 14b, maybe it's just because of the Cali gas I'm stuck with. R

 

[eclipsyco]

I can't decide on the turbo I want.. Search.. More searching and then some. I see tons of numbers but most being on race gas.

I currently have
14B
650cc FIC
DSMlink
272 BC cams
2600 ACT
190 Walbro
Greddy 18r FMIC
3" cat back
K&N Intake


I'm trying to reach 325-350 AWHPon 91 Octane.. I figure a 16g was good enough but it seems that those numbers are on a higher octane/race gas.. So, I'm thinking perhaps the greddy 18g can get me there on 91? I can get a good deal on one.. If not then ill have to look into a 20g. I was a little disappointed by the 14b, maybe it's just because of the Cali gas I'm stuck with. R

Get a 20g to keep the OEM look since you are in Cali so you don't beat on it so much and get to power levels you want but probably you need to upgrade fuel bump 255lph a FPR and injectors.

 

[Zufelt]

Get a 20g to keep the OEM look since you are in Cali so you don't beat on it so much and get to power levels you want but probably you need to upgrade fuel bump 255lph a FPR and injectors.

Yeah for sure.. Also a t3 flanges manifold or adapter for it right? The 18g is bolt on, you don't think it would get me there?

 

[eclipsyco]

Yeah for sure.. Also a t3 flanges manifold or adapter for it right? The 18g is bolt on, you don't think it would get me there?

Yes it sure could get you there but you'll be pushing its limits on pump and 91oct. The 20g is a bolt on as well and looks just as a 16g or 18g just a lit bit bigger.

 

[Zufelt]

Yes it sure could get you there but you'll be pushing its limits on pump and 91oct. The 20g is a bolt on as well and looks just as a 16g or 18g just a lit bit bigger.

Since when? I kept reading about the 20g but its a t3 manny unless you take off the housing and have it out on the 20?.. Maybe in misreading. Yeah 91 really limits me here.

 

[eclipsyco]

Since when? I kept reading about the 20g but its a t3 manny unless you take off the housing and have it out on the 20?.. Maybe in misreading. Yeah 91 really limits me here.

Bro the 20g is the biggest or was the biggest bolt on turbo you can get search a around and see for yourself of course there are t3 flanges 20g as well as 18g t3 flanged etc that doesn't mean anything tho is just a flange.

 

[kamikazeredneck]

I can't decide on the turbo I want.. Search.. More searching and then some. I see tons of numbers but most being on race gas.

I currently have
14B
650cc FIC
DSMlink
272 BC cams
2600 ACT
190 Walbro
Greddy 18r FMIC
3" cat back
K&N Intake


I'm trying to reach 325-350 AWHPon 91 Octane.. I figure a 16g was good enough but it seems that those numbers are on a higher octane/race gas.. So, I'm thinking perhaps the greddy 18g can get me there on 91? I can get a good deal on one.. If not then ill have to look into a 20g. I was a little disappointed by the 14b, maybe it's just because of the Cali gas I'm stuck with. R

Stock 6bolt
rc550 injectors
wally 255
fp race manifold
custom sheet metal intake manifold
VRSF Intercooler
ECMLink V3
3in exhaust

I've got a 50 trim which is very similar to the 20g and I made 347awhp on 91 at 6000ft in elevation so you should be able to run a 20g and hit your goal. Although I would recommend changing your fuel pump as I was running a wally 255 and I doubt your 190 would be able to handle the extra hp. Also my 550cc injectors were being topped out when I did the dyno so I upgraded to 1000cc. Your 650 would make it but barley and no more. Hope this helps

 

[We're on Boost]

Since when? I kept reading about the 20g but its a t3 manny unless you take off the housing and have it out on the 20?.. Maybe in misreading. Yeah 91 really limits me here.

Have you looked at Forced Performance bolt-on turbos? The one that would do it for you is the "FP Green for DSM". FP has lowered the price on this recently, it's currently "on sale" for $999.
Forced Performance Turbochargers: FP GREEN for DSM

What 20g have you been looking at? Is it a TD05H or a TD06? The TD05H turbine wheel is a little small for making the hp you want on 91 octane, I think. TD06 or TD06H should probably be ok.

The 50 trim mentioned by kkredneck, and the FP Green for DSM, both have turbine wheels sized right for what you want (bigger than a TD05H) plus they have a bigger compressor than a 20g.

The FP Green is what I would call "DSM native" meaning it is built from the ground up to be a bolt-on DSM configured turbo. The 50 trim is not "DSM native", but has been adapted with bolt-on housings.

 

[Zufelt]

Have you looked at Forced Performance bolt-on turbos? The one that would do it for you is the "FP Green for DSM". FP has lowered the price on this recently, it's currently "on sale" for $999.
Forced Performance Turbochargers: FP GREEN for DSM

What 20g have you been looking at? Is it a TD05H or a TD06? The TD05H turbine wheel is a little small for making the hp you want on 91 octane, I think. TD06 or TD06H should probably be ok.

The 50 trim mentioned by kkredneck, and the FP Green for DSM, both have turbine wheels sized right for what you want (bigger than a TD05H) plus they have a bigger compressor than a 20g.

The FP Green is what I would call "DSM native" meaning it is built from the ground up to be a bolt-on DSM configured turbo. The 50 trim is not "DSM native", but has been adapted with bolt-on housings.

Man, I didn't think I would ha e to go as big as a green for 300 AWHP on 91 octane.. I was looking at the TD06H.. The 190 should get me my 300 hp mark I'm thinking. The 14b just doesn't have enough pull for me.. Pretty slow.

 

[WES_393]

You don't need race gas to hit 300hp. On 91 octane, you could hit your goal with an Evo 3 16g (and I mean a REAL one) or TD05H 20g (16g with a 20g compressor wheel). Of course it would be easier with a larger turbo, but you don't need or want a 54 lb/min turbo for a 300hp goal.

 

[Zufelt]

You don't need race gas to hit 300hp. On 91 octane, you could hit your goal with an Evo 3 16g (and I mean a REAL one) or TD05H 20g (16g with a 20g compressor wheel). Of course it would be easier with a larger turbo, but you don't need or want a 54 lb/min turbo for a 300hp goal.

Good to hear!! Ill try out the 20g in hopes of making 325 AWHP on 91. I would use a 16g but I think I would be maxing it out quiet a bit

 

[We're on Boost]

Man, I didn't think I would ha e to go as big as a green for 300 AWHP on 91 octane.. I was looking at the TD06H.. The 190 should get me my 300 hp mark I'm thinking. The 14b just doesn't have enough pull for me.. Pretty slow.

To get 300 awhp on 91, you probably wouldn't need bigger than an evo3 16g. A real one. But up in post #2731 you were "trying to reach 325-350 AWHP on 91 Octane". Anyway, if the 20g you are looking at is a TD06H, you should be golden for getting to 325 awhp on 91.

 

[We're on Boost]

Most of the shops that used to sell 20g turbos don’t sell them anymore. There are a lot of possible 20g configurations, so it is impossible to talk about the 20g as if it is one thing and one thing only. It can get to be a confusing subject. So I thought it would be a good idea to post a pic of this chart that shows the Greddy configurations of the turbo. For each configuration they show a HP range graphically, with PS numbers at the bottom of the chart. PS stands for Pferdestarke which is “metric horsepower”. This is almost the same as our USA (or International) horsepower. For example, 300 PS = 296 international Horse Power.

Anyway, in my opinion their PS ranges are a little conservative, meaning you could get something a little to the right of the middle of their stated range, with pump gas, if you have a well setup engine. But I think this is a really good chart.

Greddy apparently only offers 3 versions of 20g, all using some level of TDO6 turbine wheel. My favorite 20g has always been the one that they list as using the TDO6SL2 turbine wheel. But I’ve never owned one. I just know that a lot of successful drift cars were using this turbo a few years ago. 350 PS is a little to the right of the middle of the range for this turbo, which to me means you could probably get this with pump gas if everything else on your engine is good and ready for it (cams and so-forth). 300 PS is right in the middle of the range.

This is just one way of looking at 20g turbos. Some people sell 20g’s with the TDO5H turbine wheel, which Greddy only uses up through the 18g.
So if I can get Image Shack to work, here’s the chart:

You must be logged in to view this image or video.

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Uploaded with ImageShack.us[/IMG]

 

[Blu90GST]

I'm sure this has been covered (I've searched a bit and couldn't really find anything that go me set on a singe one)
I'm thinking I wan either an evo III 16g or an hx35. I can get an hx35 from a guy near me for 125$. I read around and somewhere I think I read that you can get the hx35 put in a mitsu housing (or one that bolts to the stock flanges) the car is a daily and I'm wanting around 300-350 hp on pump gas (possibly more on turbo blue). I've also been looking at some of FP's turbos but I'm on a pretty tight budget. I'd like something that spools somewhat quick.